Jute (/dʒuːt/ JOOT) is a long, rough, shiny bast fibre that can be spun into coarse, strong threads. It is produced from flowering plants in the genus Corchorus, of the mallow family Malvaceae. The primary source of the fiber is Corchorus olitorius, but such fiber is considered inferior to that derived from Corchorus capsularis.
Jute fibers, composed primarily of cellulose and lignin, are collected from bast (the phloem of the plant, sometimes called the "skin"). The industrial term for jute fiber is raw jute. The fibers are off-white to brown and range from 1–4 meters (3.3–13.1 ft) long. In Bangladesh, jute is called the "golden fiber" for its color and monetary value.